Hi Matt -- thx for the response. I am checking the feature you mentioned:
Tools -> Options... -> General -> Update Tags When File Info Changes
The Help manual describes this as, "If this option is checked (default), tags will be updated when changes are made in the library. "
It doesn't mention about remote tagging here, and when I import a library via File -> Search for Media Servers, and then I update a tag on one of the files, this doesn't affect the real version that exists on my remote server. This is the functionality I was after. I searched the archives, and it seemed I found some places where Jim indicated that this doesn't currently exist, so I was just putting in my $.02 for feature request.
The usage scenario is as follows:
I have about 30,000 songs in the library -- it is a lot. I can't possibly remember what it all is, and I stream it to different rooms in the house using my laptop as a client. Often, I will stumble across a track that is a real gem, and I want to remember it, so I was hoping for the ability to quickly tag it with a rating via the client. Later, I can find it by having a smart playlist that has all files tagged with a specific rating.